For a time she basked in the nation's good opinion, marrying John Dunbar, having a son, Nicholas, releasing further demure singles like This Little Bird and Come And Stay With Me (which, of course, meant in separate rooms) and becoming one of the first pop stars to broadcast a charity appeal.
Author Philip Norman was following up his biography of The Beatles in 1981 when, at the insistence of Ms Faithfull, he did his first line of cocaine.
'You've got to have a line of coke,' she purred: The night I did cocaine with a megastar in a Chelsea flat... then never touched it again In 40-plus years of writing about musical megastars, from the godfather of soul James Brown to the grandfather of pop Rod Stewart, I've snorted cocaine only once.
With her days in the pop charts far behind her, Marianne, who died last week aged 78, was then living with a punk musician some years her junior known as Ben E Ficial.
One night, Dunbar took her to a party whose guests included Mick Jagger and The Rolling Stones' 19-year-old manager-cum-record producer, Andrew Loog Oldham.